TM 9-2350-256-102-2. MECHANIC'S (ASSISTANT OPERATOR'S) CONTROLS AND INSTRUMENTS.NOTEThe mechanic's (assistant operator's) seat controls, interphone control box, andhatch control are the same as the driver's.a.Mechanic's Hatch Control (1).Holds mechanic's hatch open for entry or exit.b.M17 Periscope (2).Provides vision to operate vehicle with hatch closed.c.Mechanic's Interphone Control Box (3).Provides communication between crew during operations.d.Mechanic's Vision Blocks (4).Provides vision while operating vehicle.e.APU Emergency Winch Control Valve (5).Controls winch in an emergency.2-20
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business